Picture frame



FIG. 1 is a front, left and upper perspective view of a picture frame showing my design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a bottom plan view thereof;

FIG. 6 is a left side elevational view thereof; and,

FIG. 7 is a front, left and upper perspective view of the picture frame, in which the base portion thereof is rotated relative to the frame body for supporting the frame body. 

The ornamental design for a picture frame, as shown and described. 